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| Vector-gasm... Cosmic Chasm! |
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| abispac:
Thank you kind, will be keeping an eye on this one. |
| Edgecrusher:
Cool. I don't want to come off as being critical at all. If anyone understands having ten thousand things going on at one time and not having enough time for even a fraction of them, it would be me. I'll wait patiently. Well, I'll try... Maybe I can even study up and eventually be of some help at some point. who knows. :cheers: |
| bobbyb13:
Not at all! Criticism is welcome when people have some that is useful. If you really want to build yourself a vector machine then posts #14, 22, 32, and 33 are the real meat of this thread. If you read those, give a good look to the docs and videos I link to, and buy yourself the parts then you are most of the way there. I spent a free morning rearranging components in this cabinet to suit some good cooling so I will update this again when I can get a chance here soon. |
| bobbyb13:
Trying again. Had a chance to get back to the machine and turn it on after rearranging things finally. I pulled most of the parts out first to have a good uncluttered think on it. The result is... Wound up leaving the power supplies, DVG, and the Pi in the same places and swapped the HV unit and deflection board positions. Makes for a better cooling layout, keeps those parts as far away from each other and the tube as possible and the parts still remain on the shelf I made for the stuff. It also allowed me to turn the deflection board on its side and possibly gain a little in velocity as regards the heat being evacuated through the cooling fins. The 120VAC fan I got is kind of noisy (and may get replaced if it is distracting once I have the bezel area built and in) but it certainly does what I wanted it to. I drilled a hole in the shelf to allow the fan to draw from wherever it likes and gave it a good angle to shoot into but still across the heatsink. The other bonus is I got to add a block of ply underneath the heatsink to carry the weight of it on its own. Prior to component rearrangement and install of the fan I was seeing 185 F on the heat sink next to one of the transistors. In that same spot the temp is now down to 95 F. I expected a good drop in temp, but wasn't expecting one that dramatic. Certainly worth the effort! I'm stoked. Audio amp should be here by the weekend I think and after that is done then it's time to start on the bezel extravaganza. Still haven't decided if I care enough to bother sanding the cabinet again and getting a more proper coat of flatter finish paint on the outside. |
| Zebidee:
Bobby, just read through your entire thread for a second time! Starting to make more sense now (kinda! :lol ). I'm feeling inspired. So, looks like I'll have to make room for my own vector project, as soon as I can make room in my shed and life, while people like you are focused on it and able to help. Wish I could work on such things as fast as you do. I messaged Barry, a long time ago, asking to be put on his list for the vector kits. Looks like I'd better dust-off my FB account and try him again. Though I do understand the reasons, still finding it bizarre that you need 2 x 24v PSUs for both positive and negative voltages. Ah well, whatever works :) Love your work, neat n tidy, and my only vaguely helpful suggestion for today is that I think you could put the USB_DVG thing on the other side - that way you won't have to run that VGA cable across the back, and it won't get in your way when you are fiddling around inside. |
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